Sergio Biston wrote:Im having issues when using Sega CD isos. I have both bin and cue files but when playing the game and soundtrack "stutters". It slowdowns so much that It cannot be played. When turning background music off the game plays fine. Any advices?

The developer notaz when he entered the 32x code, he changed the memory manager code to support 32x memory management. Looking at the Sega CD emulation run, I saw that this new memory management code is slower than the old one. When background music is disabled, the CPU is relieved and emulates in a timely manner, eliminating glitches. For now I recommend emulating Sega CD games in version 1.51b and would appreciate if you informs which games give problems.

Try with cue, iso and mp3. I have my CD games ripped this way and it works pretty well

Thank you. But what should be the name for the mp3 files?

I have each file named sequentially eg. Snatcher CD (E)_01.iso, Snatcher CD (E)_02.mp3, Snatcher CD (E)_03.mp3, Snatcher CD (E)_04.mp3.....etc. I have posted my 'Snatcher' cue file below to show example.
There are some other things you can do improve things if you're getting a lot of skipping:
Use the European PAL versions (Mega CD) of Sega CD games if they exist. They only need to run at 50fps to be at full speed, so any frameskip would only kick in when framerate drops below 50fps, rather than the 60fps for US NTSC games.
Reduce 'Sound Quality' from '44100hz' to '22050' as it's less cpu intensive.
In 'Sega/Mega CD' options, try disabling 'Scale/Rot. fx' and 'Accurate sync for CPU's' if the game doesn't need it. 'Scale/Rot. fx' is used for 'Scaling and Rotation'. It is sometimes only used in small sections of certain games (eg. in 'Jaguar XJ220', it is only used to show the rotating track map when choosing a circuit), but for some other games it is essential (eg. 'Wheel of Fortune' needs it enabled to display the 'Wheel'). I tend to leave it off (unless it's obvious a game needs it) as many games don't use it.

Sergio Biston wrote:Im having issues when using Sega CD isos. I have both bin and cue files but when playing the game and soundtrack "stutters". It slowdowns so much that It cannot be played. When turning background music off the game plays fine. Any advices?

The developer notaz when he entered the 32x code, he changed the memory manager code to support 32x memory management. Looking at the Sega CD emulation run, I saw that this new memory management code is slower than the old one. When background music is disabled, the CPU is relieved and emulates in a timely manner, eliminating glitches. For now I recommend emulating Sega CD games in version 1.51b and would appreciate if you informs which games give problems.

Notaz improved some CD stuff in v1.91, eg. Road Avenger is barely playable in v1.51b, and often crashes, but plays pretty much perfect in v1.91.

Sergio Biston wrote:Im having issues when using Sega CD isos. I have both bin and cue files but when playing the game and soundtrack "stutters". It slowdowns so much that It cannot be played. When turning background music off the game plays fine. Any advices?

The developer notaz when he entered the 32x code, he changed the memory manager code to support 32x memory management. Looking at the Sega CD emulation run, I saw that this new memory management code is slower than the old one. When background music is disabled, the CPU is relieved and emulates in a timely manner, eliminating glitches. For now I recommend emulating Sega CD games in version 1.51b and would appreciate if you informs which games give problems.

Thanks Robson. I used 1.51b but the problem persists. The games are Spiderman Vs King Pin and Jurassic Park, the only ones I tested. PSP 2000, US isos.

Sergio Biston wrote:Im having issues when using Sega CD isos. I have both bin and cue files but when playing the game and soundtrack "stutters". It slowdowns so much that It cannot be played. When turning background music off the game plays fine. Any advices?

The developer notaz when he entered the 32x code, he changed the memory manager code to support 32x memory management. Looking at the Sega CD emulation run, I saw that this new memory management code is slower than the old one. When background music is disabled, the CPU is relieved and emulates in a timely manner, eliminating glitches. For now I recommend emulating Sega CD games in version 1.51b and would appreciate if you informs which games give problems.

Thanks Robson. I used 1.51b but the problem persists. The games are Spiderman Vs King Pin and Jurassic Park, the only ones I tested. PSP 2000, US isos.

Are you using the fast graphics renderer? Use Vsync - "never" or "sometimes" and/or Frameskip - Auto

I tested the Spiderman game and really the sound was stuttering. But after changing the vsync settings the game ran normally